Combo photo shows hunter Daqian of Qionglin Village in 1950s (L, file photo) and Daji, a former hunter, working as a farmer and forest ranger now in Qionglin Village of Mainling County in Nyingchi, southwest China's Tibet Autonomous Region, June 19, 2021 (R, photo taken by Jigme Dorje). On May 23, 1951, the Agreement of the Central People's Government and the Local Government of Tibet on Measures for the Peaceful Liberation of Tibet (17-Article Agreement) was signed, officially proclaiming the peaceful liberation of Tibet. The year 2021 marks the 70th anniversary of the historic event. (Xinhua)